Michael geiffot



(Io Model y M. GRIFFIN.-

' Sole-Channeling Machine.

Mm-235 525. Patnted Dec. 14,1880.

IN- FE'ERS. FHOTO-LITNOGRAPHER, WASHINGTON. D C.

MICHAEL GRIFFIN, OF

UNITED STATES PATENT OFFICE.

S'OLE-CH'ANNELING MACHINE.

SPECIFICATION forming part of Letters Patent No. 235,525, dated December 14, 1880,

Application filed October 23, 1880. (No model.)

To all whom it may concern:

Be it known that I, MICHAEL GRIFFIN, of

Weymouth, in the county of Norfolk and State of Massachusetts, have invented certain Improvements in Machines for Channeling the Soles of Boots and Shoes, of which the following is a full, clear, concise, and exact description, reference beinghad to the accompanying drawings, making a part hereof, in which- Figure 1 is-a side elevation of a channelinginachine embodying my invention. Fig. 2 is aside view of the front part of the head. Fig.

'3 is a bottom plan of the front part of the head. a

The smooth feed-wheel A is mounted on shaft a, and the roughened feed-wheel B on shaft 72, in a Well-knownway, the shaft on being journaled in frame A and shaft 1) in head B, as usual.

The knives 1 2 3 4 are those described in my application for a patent allowed October 14, 1880.

The presser f is in substance the same as that usually used in channeling-machines, and bears upon the sole nearer the middle of the sole than does the rough feed-wheel B.

In channeling-machines before my inven tion but onepresserwas' used, and, that was arranged so that it would bear upon the sole near one side of the rough feed-wheel, and that part of the sole near the other side of the rough feed-wheel B was not held down except by the stifl'ness of theleather,and consequently tended to spring up. The result of this is that the channels produced on such machines are imperfect and wavy.

The first part of my invention relates to means for remedying this difficulty 5 and it consists in the arrangement of the roughened feedwheel B between two pressers, each being 40 near the rough feed-wheel, and preventing any spring of the leather between the rough feedwheel and'the knives.

The second part of my invention relates to mechanism for adjusting the edge-guide D; and 4 5 I it consists in the combination, with the edgeguide D, of a spindle, d, spring 01, and lever (1 The spring (1 holds the edge-guide at the proper distance for channeling at the shank, while the edge-guide is readily moved toward wheel B by means of lever (F. A stop, (1 serves to limit the motion of lever 01, as described. In practice lever 01 is moved by a treadle, as will be clear to all skilled in the art without further description.

The head B is held down by means of spring b and strap 12 in the usual Way, and lifted in order to put in the sole by the lever I), also in the usual Way. A set-screw, b serves to prevent the head B from coming too near the smooth feed-wheel A.

The pressers f and g are arranged near the roughenedfeed-wheel with that wheel between them, as shown in Fig. 1. Both pressers should be adjustable.

What I claim as my invention is 1. In a channeling-machine, the roughened feed-wheel B, arranged between the presser f and the presser g, each presser bearing upon the sole near the side of the wheel B, as and for the purpose specified.

2. In a channeling-machine, the edge-guide D, in combination with spindle d, spring 01, and lever d substantially as described.

MICHAEL GRIFFIN.

Witnesses J. E. MAYNADIER, J. R. Snow. 

